An elevator system in which the tail codes can be decreased, the system is hardly influenced by phasing, and the car−to−controller communication time is short. In a mode of the invention, the position of a car radio terminal (31) can be deduced on the basis of the information from an encoder (52) installed in an electric motor (51) for moving a car (30). A fixed radio terminal connectable to the car radio terminal can be selected from fixed radio terminals (20 to 23). In another mode of the invention, the fixed radio terminals (20−23) search for the car radio terminal (31) periodically, and one of the fixed radio terminals is always connected to the car radio terminal. The connected fixed radio terminal puts up a flag in a controller (10). In further another mode of the invention, the car radio terminal (31) searches for the fixed radio terminals (20−23) periodically and is always connected one of them. The connected fixed radio terminal puts up a flag in the controller (10).
